| abstract |
Thermodynamic properties of a natural gas stream can be determined in real time utilizing modeling algorithms in conjunction with one or more sensors for quantifying physical and chemical properties of the natural gas. Related techniques, apparatus, systems, and articles are also described. A method and apparatus for determining the energy content of a gas stream in which spectroscopic measurements on carbon dioxide and hydrocarbons as well as a third measurement of temperature, pressure and sund velocity of the gas are input to a processor which uses an algorithm to calculate the energy contact. |